Sharpener



Sept. 1*, 1925. I 1,552,167

T. JOHNSON SHARPENER Filed April 18, 1922 lalllllllllll man f Patented Sept. 1, 1925.

UNITED-STATES rrrnononn JoHNsoN, or nain, rnNN-sYLvANIA.

SHA-MENEN.

Application led April 1,8,

To all whom t may concern:

Be it known that I, THEODORE JOHNSON, a citizen of the United States, residing at Erie, in the county of Erie and State of Pennsylvania, have invented' new and useful Im rovements in Sharpeners, of which-the fol owing is a specification.

This invention is particularly designed to Sharpenl knives, particularly knives for household use.` f V Y The invention' is illustrated in the accompanying drawings as follows Fig. 1 shows a ffront" elevation of the device, f

Fig-2 a side elevation, l Fig. 3 a section on the line 3 3 in Fig. 1, Fig. 4 a section on the line 4-4 in Fig. 2, F ig.` 5 an elevation of the sharpening blades,

Fig. 6 a section on the line 6*?) in Fig. 5, and' Fig. 7 a view showingthe locking devices. The frame is made up of the plate 1 which is secured to a wall by a screw a. This plate has a hook or bend 2 at its bottom and a cover plate 3 is secured betw-een the front face 2 and the rear wall of the frame in any convenient manner. As shown it has tongues 5 which extend through the frame 1. The

ends of this cover plate are bent down at 4 forming a closure for the ends of the frame. A rotatable mounting 6 extends across the frame between the end pieces 4, a screw 7 vextending into one end of the mounting 6 through a perforation 8 in the end plate 4,

the opposite end having'a. screw 9 extending through a perforation 10 in the opposite end plate 4, the screw 9 having wings 9'LL by means of which the mounting may be readily rotated. Sharpening blades are in the form These are provided withA of wheels 11. openings 12 which fit the mounting 6. Preferably this mounting is of locking contour in cross section which as exemplified in the drawings is square so ythat the wheels are locked on the mounting or shaft 6. Radially extending arms 13 are arranged on the wheels. These arms preferably have beveled edges 14 so as to form a cutting edge which will more readily effect the sharpening action on the knife. A locking plate l5 is arranged at the end. It is similar in form to the other plates except that it is thinl and of resilient material. It is adapted to pass over slight protuberances 16 formed by stamping one .of the end plates 4. These 1922. serial No. 555,359.'

Ament is supported in line withthe pass. K The .locking plate 15 4is adaptedto bring one of l.these passes into kregister with theslot 17 withV .each-,locking position.y A'fknife as shown in dotted lines at 19 is drawnthrough the pass 18, thus elfecting a sharpening action of the blade. As the edges of one pass become dull or ineffective the wheel may be turned to bring the next succeeding pass into register with the slot 17, thus providing a renewed pass with new sharpening ledges.

What I claim as new is :4-

1. In a Sharpener, the combination of a mounting, and a series of plates carried byy the mounting with arms extending alternately forming between them a vpass,'said pass extending in a direction at right angles to the faces .ofthe plates, and the plates' forming a yplurality .of arms with cutting edges at one side of the pass.

2. In a Sharpener, the combination of a mounting having a cross-sectionof locking contour, and a series of wheels having perforations fitting the mounting locking each wheel independently with the mounting, said wheels having arms extending radially from the mounting, the arms being alternately offset circumferentially forming axially directioned passes with sharpening edges at each side of the passes.

3. In a Sharpener, the combination of a rotating mounting, said mounting having a cross-section of locking. contour, and a series of sharpening wheelson the mounting, said wheels having perforations fitting the mounting and locking each wheel lindependently with the mounting, said wheels having radially extending arms with sharpening edges circumferentially offset to form a pluraliy of axially. extending passes with sharpening edges at each side of the passes.

4. In a Sharpener, the combination of a rotating mounting, said mounting having a cross-section of locking contour, a series of sharpening wheels on the mounting, @2id lplurality wheels having perforations fitting the mounting and locking each wheel independly with the mounting, V saidglwheels having radially extending arms with sharpening edges eircumferentially offset to form a plu rality of axially extending passes with sharpening edges at each side of the passes, a frame carrying the mounting, and means for holding the mounting against turning.

k5. In a Sharpener, the combination of a rotating mounting, said muntin'g having a cross-section of locking Contour, aseries of sharpening wheels Ion the mounting, said wheels' Y having perforation's fitting the yin'ounti'ng and lockingeac-h vwheel independently withrth'e mounting, said wheels having radially extending arms with sharpening edges' eir'c'umfere'ntially offset to form a of axially extending passes with sharpening edges at e'ach side of the passes, a i'le barryngth'e mounting, and means for yieldingly holding the mounting against tnr'ning.

6. In a Sharpener, the combination of a rotating mounting, a series of sharpening wheels on the mounting having radially eX- teiiding arms with sharpening edges oiroumferentially Offset to form a plurality orP passes with sharpening edges at each side of the passes, attra-,me carrying the mounting, and a yielding plate arranged on the mounting having arms yieldingly engaging projections Ion the frame. l l n' K 7. In a Sharpener, the combination otra rotating mounting, a series, O sharpening blades carried by the mounting, rarnein which the mountingvis journaledJ said ,frame comprising a baal; plate havinga lforward and upward bend", and` aboven platenan ranged between the upward bend and back plate with downturned ends and having a slot through which an 'article being sharpened may be passedm l Y A n vp In testimony whereof I have hereunto set my hand. v l

THEODORE JOHNSON. 

